Improvement in wagon-gears



J. H. DURAND.

Wagon-Gear.

No. 208,381. Patented sept. 24,1878.

j 21 Veni-0f NA PETERS. FMOTILLITHOGR UNITED STATES PATENT OEEIGE.

JOHN H. DURAND, OF DETROIT, MICHIGAN.

' IMPROVEMENT IN WAGON-GEARS.

Specification forming part of Letters Patent No. 208,381, datedSeptember 24, 1878; application filed June 19, 1878. 4

To all whom it may concern:

Beit known that I, JOHN H. DURAND, of Detroit, in the 'county of Wayneand State of Michigan, have invented an Improvement in Side-SpringWagon-Gears, of which the following is a specification:

In side-spring wagons experience has developed the fact that a greaterdepression upon one sidethan the otherlengthens that spring more thanthe other, thereby throwing farther to the rear the corresponding end ofthe rear axle by the greater lengthening of the spring under the greaterdepression. It Yis also found that such greater depression upon onespring tends to produce a twisting or tor sional action upon the otherspring near its ends. The object of my invention therefore is to remedythese difficulties, which have heretofore attended the use ofside-spring wagons as ordinarily constructed.

Figure 1 is a perspective of my runninggear from the top. Fig. 2 is aplan from the bottom. V

ln the accompanying drawing, which forms a part of this specification, Arepresents the rear axle 5 B, the front axle; O, the headblock; D, theIfth-wheel; E, the side springs, and F the bearing-blocks which supportthe body upon the springs, and are all of the usual construction. G isgirder or platform laterally and centrally and rigidly securing the sidesprings E together. H is a hanger, supported fi'om the longitudinalcenter of the platform G, with its lower end terminating in a bifurcatedbracket, a.. I is a rod, pivoted at its front end to a bracket, b,which, in turn, is secured to a metallic brace extending across thelower side of the circle and around the forward axle. J are two otherrods, of equal length, with their forward ends, together with the rearend of the rod I, pivoted by means of a single bolt passing through themand the bracket a, while the rear ends of said rods J are pivoted to theclips d upon the rear axle.

In the drawings my device is shown as secured to a narrow box-wagon, theclips d becommunicating to the other springa portion of such excess ofweight, compelling both springs to act simply vertically and withouttorsion or twist. At the same time the rods I and J J receive, by meansof the hanger H,

the lower end of which rests upon the bracket a, the superimposed weightupon the springs at the central pivotal point, thereby preventing thegreater depression upon one spring than the other, and consequent'lengthening of the saine, from throwing one end ofthe rear axle more tothe rear than the opposite end.

I am aware of the Letters Patent N o. 193,444, issued to S. Gibson, July24, 1877, and disclaim any part of said invention; but

That I claim as my invention, and desire to secure by Letters Patent,is-

In combination with the central girder or platform G, the hanger H,terminating in the bifurcated bracket a, the rod I, pivoted at its-forward end, and the rods J, pivoted at their rear ends, as described',and each of said rods centrally pivoted below the girder or platform,

constructed and arranged substantially as and for the purposes setforth.

JOHN H. DURAND. Witnesses:

H. S. SPRAGUE, THEO. S. DAY.

